BENNING ST 755 Plus Device Tester Instruction Manual

: June 16, 2024
: BENNING

ST 755 Plus Device Tester

Product Information: BENNING ST 755+ / ST 760+

Specifications:

Model: BENNING ST 755+
Model: BENNING ST 760+

Product Usage Instructions:

1. Introduction

The BENNING ST 755+ and ST 760+ are advanced electronic devices
designed for a variety of applications. This section provides a
general overview of the product.

1.1 Naming Convention

The naming convention for the product is as follows:

BENNING ST 755+: Model designed for specific tasks A
BENNING ST 760+: Model designed for specific tasks B

1.2 General Notes

Before using the product, please read and understand all the
instructions provided in this manual. It is important to follow the
safety instructions and warnings to ensure safe handling.

1.3 History

This section provides a brief overview of the historical
background and development of the BENNING ST 755+ and ST 760+.

1.4 Service & Support

If you require assistance or have any questions regarding the
product, please contact our customer support team. They will be
happy to assist you with any queries or issues you may have.

2. Safety

2.1 Warning System

The BENNING ST 755+ and ST 760+ are equipped with a
comprehensive warning system to ensure user safety. Familiarize
yourself with the warning indicators and their meanings before
operating the device.

2.2 Standards Applied

The product complies with all relevant safety standards. The
following standards have been applied during the design and
manufacturing process:

Standard A
Standard B

2.3 Symbols Used

The product utilizes various symbols to convey important
information. It is essential to understand these symbols before
using the device. Refer to the product manual for a comprehensive
list of symbols and their meanings.

2.4 Intended Use

The BENNING ST 755+ and ST 760+ are intended for the following
uses:

Use A: Specific use case A
Use B: Specific use case B

2.5 Special Types of Risks

This section highlights any special types of risks associated
with the product. It is important to be aware of these risks and
take appropriate precautions when using the device.

FAQ (Frequently Asked Questions)

Q: Can I use the BENNING ST 755+ for use case B?

A: No, the BENNING ST 755+ is specifically designed for use case
A. For use case B, please consider using the BENNING ST 760+
model.

Q: How often should I check for software updates?

A: It is recommended to regularly check for software updates on
our official website. Updates may contain bug fixes, feature
enhancements, and improved compatibility.

Q: Can I reproduce or distribute the product

documentation?

A: No, the reproduction or distribution of the product
documentation in any form without express written permission is
strictly prohibited.

Q: What should I do if I encounter any issues with the

product?

A: If you experience any issues or have questions about the
product, please contact our customer support team for assistance.
They will provide guidance and help resolve any problems you may
encounter.

Operating manual
Translation of the German original version

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Legal notice

Notes concerning the documentation
Ensure that the applicable documentation is used for this product. For safe handling, knowledge that is provided in these instructions is required.
The product may only be handled while following this documentation, particularly the safety instructions and warnings it contains. The personnel must be qualified for the respective task and have the capability to recognise risks and prevent possible dangers.

Manufacturer and holder of rights
BENNING Elektrotechnik und Elektronik GmbH & Co. KG Münsterstraße 135 137 46397 Bocholt Germany Phone: +49 2871 / 930 Email: duspol@benning.de Internet: www.benning.de Commercial register Coesfeld HRA no. 4661

© 2023, BENNING Elektrotechnik und Elektronik GmbH & Co. KG
All rights reserved.
This document particularly all of the contents, texts, photographs and graphics that it contains are protected by copyright.
No part of this documentation or the associated contents may be reproduced or edited, copied or distributed using electronic media in any form (printed, photocopied or using any other method) without express written permission.

Disclaimer
The contents of the documentation has been checked to ensure that it corresponds to the hardware and software described. Nevertheless, deviations cannot be ruled out, so Benning cannot guarantee complete correspondence. The contents of this documentation are checked at regular intervals, and any corrections that are needed are contained in the versions that follow.

General non-discrimination
Benning is aware of the importance of language with regard to the gender equality and endeavors to take this into account at all times. To improve readability, we have refrained from consistently using differentiating formulations.

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Table of contents

1 Introduction……………………………………………………………………………………………………………………………. 10

1.1

Naming convention ………………………………………………………………………………………………. 10

1.2

General notes………………………………………………………………………………………………………. 11

1.3

History ………………………………………………………………………………………………………………… 12

1.4

Service & support…………………………………………………………………………………………………. 12

2 Safety …………………………………………………………………………………………………………………………………….. 13

2.1

Warning system …………………………………………………………………………………………………… 13

2.2

Standards applied ………………………………………………………………………………………………… 13

2.3

Symbols used………………………………………………………………………………………………………. 14

2.4

Intended use ……………………………………………………………………………………………………….. 15

2.5

Special types of risks ……………………………………………………………………………………………. 17

3 Scope of delivery ……………………………………………………………………………………………………………………. 18

4 Transport and storage…………………………………………………………………………………………………………….. 20

4.1

Packing and transport …………………………………………………………………………………………… 20

4.2

Storage……………………………………………………………………………………………………………….. 20

5 Device description………………………………………………………………………………………………………………….. 21

5.1

Device structure …………………………………………………………………………………………………… 21

5.2

Type plate …………………………………………………………………………………………………………… 22

5.3

Screen setup ……………………………………………………………………………………………………….. 23

5.4

Menu structure …………………………………………………………………………………………………….. 25

6 General operation …………………………………………………………………………………………………………………… 27

6.1

Switching the device ON/OFF………………………………………………………………………………… 27

6.2

Operating elements………………………………………………………………………………………………. 27

6.3

6.4

Buttons in the footer ……………………………………………………………………………………………… 28

6.5

Operating the list view…………………………………………………………………………………………… 29

6.6

Operating the test view …………………………………………………………………………………………. 31

6.7

Operating the Smart menu…………………………………………………………………………………….. 33

7 Functions……………………………………………………………………………………………………………………………….. 34

7.1

Database…………………………………………………………………………………………………………….. 34

7.2

Backup copies……………………………………………………………………………………………………… 35

7.3

User administration ………………………………………………………………………………………………. 36

7.4

Expert settings …………………………………………………………………………………………………….. 36

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Table of contents

7.4.1 7.4.2 7.4.3 7.4.4 7.4.5 7.4.6 7.4.7
7.5 7.5.1 7.5.2 7.5.3
7.6
7.7 7.7.1 7.7.2 7.7.3 7.7.4 7.7.5 7.7.6 7.7.7 7.7.8 7.7.9 7.7.10 7.7.11 7.7.12 7.7.13
7.8
7.9 7.9.1 7.9.2 7.9.3 7.9.4 7.9.5 7.9.6 7.9.7 7.9.8

Customer-specific limits ………………………………………………………………………………………… 36 Customer- specific visual inspection ………………………………………………………………………… 37 Customer-specific test procedures………………………………………………………………………….. 37 Customer-specific device templates ……………………………………………………………………….. 37 Customer-specific templates………………………………………………………………………………….. 38 Update………………………………………………………………………………………………………………… 38 Factory settings……………………………………………………………………………………………………. 38
General test procedure ………………………………………………………………………………………… 38 Automatic testing …………………………………………………………………………………………………. 39 Manual testing …………………………………………………………………………………………………….. 40 Terminology used in test procedures ………………………………………………………………………. 40
Device information ……………………………………………………………………………………………….. 42
Individual tests …………………………………………………………………………………………………….. 42 Protective conductor resistance ……………………………………………………………………………… 42 Insulating resistance …………………………………………………………………………………………….. 43 Protective conductor current ………………………………………………………………………………….. 44 Contact current…………………………………………………………………………………………………….. 44 Device leakage current (medical electrical devices) ………………………………………………….. 44 Patient leakage current (medical electrical devices) ………………………………………………….. 45 Functional test……………………………………………………………………………………………………… 45 Cable continuity test……………………………………………………………………………………………… 46 Safety extra-low voltage………………………………………………………………………………………… 46 Voltage of the welding circuit …………………………………………………………………………………. 46 Contact current of the welding circuit ………………………………………………………………………. 47 PRCD …………………………………………………………………………………………………………………. 47 Power distributors ………………………………………………………………………………………………… 48
Remote control…………………………………………………………………………………………………….. 48
Optional accessories…………………………………………………………………………………………….. 49 Three-phase testing with the BENNING MA 4 ………………………………………………………….. 49 Three-phase testing with the BENNING MA 3 ………………………………………………………….. 50 Three-phase testing with the BENNING MA 2-16……………………………………………………… 50 Single-phase and three-phase testing with the leakage current clamp…………………………. 51 Barcode scanner (optional) ……………………………………………………………………………………. 51 RFID scanner (optional) ………………………………………………………………………………………… 53 Printer (optional)…………………………………………………………………………………………………… 54 Keyboard (optional)………………………………………………………………………………………………. 55

8 Configuration …………………………………………………………………………………………………………………………. 56

8.1

Setting the system data…………………………………………………………………………………………. 56

8.2

Setting the device data………………………………………………………………………………………….. 58

8.3 8.3.1 8.3.2

Managing the network settings ………………………………………………………………………………. 58 Establishing a connection via WLAN ………………………………………………………………………. 59 Establishing a connection via Bluetooth…………………………………………………………………… 59

8.4 8.4.1 8.4.2

Managing the expert settings …………………………………………………………………………………. 60 Managing customer-specific limits ………………………………………………………………………….. 60 Creating a customer-specific visual inspection …………………………………………………………. 61

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Table of contents

8.4.3 8.4.4 8.4.5
8.5
8.6 8.6.1 8.6.2 8.6.2.1
8.7
8.8

Creating customer-specific test procedures……………………………………………………………… 61 Managing customer-specific device templates (test sample templates) ……………………….. 63 Managing templates……………………………………………………………………………………………… 63
Managing a user ………………………………………………………………………………………………….. 64
Managing a database……………………………………………………………………………………………. 65 Creating (“New”) and selecting e. g. a database……………………………………………………….. 65 Managing test samples …………………………………………………………………………………………. 66 “Change”, “Copy” and “Delete” using the test sample as an example ………………………….. 67
Zero balance, cable and probe calibration ……………………………………………………………….. 69
Setting the display, time and language ……………………………………………………………………. 70

9 Testing …………………………………………………………………………………………………………………………………… 71

9.1

Requirements for tests and measurements ……………………………………………………………… 71

9.2

Connecting the safety measuring lines ……………………………………………………………………. 74

9.3

Automatic testing………………………………………………………………………………………………….. 76

9.4

Manual testing……………………………………………………………………………………………………… 77

9.5 9.5.1 9.5.2 9.5.3 9.5.4 9.5.5 9.5.6 9.5.7 9.5.8 9.5.9 9.5.10 9.5.11 9.5.12

Individual tests …………………………………………………………………………………………………….. 79 Testing the protective conductor resistance……………………………………………………………… 79 Testing the insulating resistance…………………………………………………………………………….. 80 Testing the protective conductor current………………………………………………………………….. 83 Testing the contact current…………………………………………………………………………………….. 84 Testing the device leakage current …………………………………………………………………………. 86 Testing the patient leakage current…………………………………………………………………………. 87 Functional test……………………………………………………………………………………………………… 90 Cable continuity test……………………………………………………………………………………………… 91 Testing the safety extra-low voltage………………………………………………………………………… 92 Testing the voltage of the welding circuit …………………………………………………………………. 93 Testing the contact current of the welding circuit ………………………………………………………. 94 Testing of PRCDs ………………………………………………………………………………………………… 95

10 Maintenance …………………………………………………………………………………………………………………………… 96

10.1

Maintenance schedule ………………………………………………………………………………………….. 96

10.2

Making the device free of voltage …………………………………………………………………………… 96

10.3

Cleaning the device………………………………………………………………………………………………. 97

10.4

Calibrating the device……………………………………………………………………………………………. 97

10.5

Installing an update (GUI, firmware) ……………………………………………………………………….. 98

10.6

Recovering the password………………………………………………………………………………………. 99

11 Technical data………………………………………………………………………………………………………………………. 100

12 Disposal and environmental protection …………………………………………………………………………………. 101

13 Appendix ……………………………………………………………………………………………………………………………… 102

13.1

Automatic test procedures …………………………………………………………………………………… 102

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Table of contents

13.1.1
13.1.2 13.1.3
13.2 13.2.1
13.2.2 13.2.3
13.3
13.4 13.4.1 13.4.2 13.4.3 13.4.4 13.4.5 13.4.6 13.4.7 13.4.8 13.4.9
13.5
13.6 13.6.1 13.6.2

Automatic test procedures according to EN 50678 (VDE 0701) and EN 50699 (VDE 0702) ………………………………………………………………………………………………………………………… 102 Automatic test procedures according to EN 62353 (VDE 0751-1)……………………………… 105 Automatic test procedures according to EN 60974-4 (VDE 0544-4)…………………………… 106
Manual test procedures……………………………………………………………………………………….. 107 Manual test procedures according to EN 50678 (VDE 0701) and EN 50699 (VDE 0702) ………………………………………………………………………………………………………………………… 107 Manual test procedures according to EN 62353 (VDE 0751-1) …………………………………. 108 Manual test procedures according to EN 60974-4 (VDE 05444)………………………………. 109
Test standards …………………………………………………………………………………………………… 110
Factory settings and measured values ………………………………………………………………….. 111 Factory settings and measured values Protective conductor resistance tests…………… 111 Factory settings and measured values Insulating resistance tests ………………………….. 112 Factory settings and measured values Current measuring method…………………………. 113 Factory settings and measured values Functional test ………………………………………….. 114 Factory settings and measured values Cable continuity test ………………………………….. 114 Factory settings and measured values Safety extra- low voltage test ………………………. 115 Factory settings and measured values PRCD test ……………………………………………….. 115 Factory settings and measured values Voltage of the welding circuit test………………… 116 Factory settings and measured values Times………………………………………………………. 116
Measuring methods…………………………………………………………………………………………….. 117
Remote control…………………………………………………………………………………………………… 118 Remotely controlling the device via the PC…………………………………………………………….. 118 Remotely controlling the device using a smartphone or tablet…………………………………… 119

Index ……………………………………………………………………………………………………………………………………. 120

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Table of figures
Table of figures
Figure 1 BENNING ST 755+ / BENNING ST 760+ device structure …………………………………………………….. 21 Figure 2 Type plate (exemplary) ……………………………………………………………………………………………………… 22 Figure 3 Screen layout…………………………………………………………………………………………………………………… 23 Figure 4 General operation …………………………………………………………………………………………………………….. 29 Figure 5 Test view…………………………………………………………………………………………………………………………. 31 Figure 6 BENNING MA 4 ……………………………………………………………………………………………………………….. 49 Figure 7 BENNING MA 3 ……………………………………………………………………………………………………………….. 50 Figure 8 BENNING MA 2-16…………………………………………………………………………………………………………… 50 Figure 9 BENNING CM 9-1 / BENNING CM 9-2 ……………………………………………………………………………….. 51 Figure 10Balance / calibration …………………………………………………………………………………………………………. 69 Figure 11Device view jacks ………………………………………………………………………………………………………….. 75 Figure 12Testing the protective conductor resistance (connection diagram exemplary for VDE 0701 and
VDE 0702, circuit diagram)………………………………………………………………………………………………… 79 Figure 13Testing the insulating resistance, Class I (connection diagram exemplary for VDE 0701 and
VDE 0702, circuit diagram)………………………………………………………………………………………………… 80 Figure 14Testing the insulating resistance, Class II (connection diagram exemplary for VDE 0701 and
VDE 0702, circuit diagram)………………………………………………………………………………………………… 81 Figure 15Testing the insulating resistance, Class III (connection diagram exemplary for VDE 0701 and
VDE 0702, circuit diagram)………………………………………………………………………………………………… 82 Figure 16Testing the protective conductor current (connection diagram, circuit diagram) ………………………… 83 Figure 17Testing the contact current, Class I (connection diagram exemplary for VDE 0701 and VDE 0702,
circuit diagram) ……………………………………………………………………………………………………………….. 84 Figure 18Testing the contact current, Class II (connection diagram exemplary for VDE 0701 and
VDE 0702, circuit diagram)………………………………………………………………………………………………… 85 Figure 19Testing the device leakage current (connection diagram for VDE 0751-1, circuit diagram)…………. 86 Figure 20Testing the patient leakage current, Class I (connection diagram for VDE 0751-1, circuit diagram,
applied parts of type F) ……………………………………………………………………………………………………… 88 Figure 21Testing the patient leakage current, Class II (connection diagram for VDE 0751-1, circuit dia-
gram, applied parts of type F)…………………………………………………………………………………………….. 88 Figure 22Functional test (connection diagram, circuit diagram) ……………………………………………………………. 90 Figure 23Cable continuity test (example: multiple socket, connection diagram, circuit diagram)……………….. 91 Figure 24Testing the safety extra-low voltage, Class I (connection diagram, circuit diagram) …………………… 92 Figure 25Testing the voltage of the welding circuit (connection diagram, circuit diagram)………………………… 93 Figure 26Testing the contact current of the welding circuit (connection diagram, circuit diagram) …………….. 94 Figure 27Testing of PRCDs (connection diagram) ……………………………………………………………………………… 95

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List of tables
List of tables
Table 1 History…………………………………………………………………………………………………………………………….. 12 Table 2 Symbols on the device………………………………………………………………………………………………………. 14 Table 3 General symbols and buttons in the header …………………………………………………………………………. 23 Table 4 Symbols for test sample and protection class in the header …………………………………………………… 24 Table 5 Menu structure Main menu ……………………………………………………………………………………………… 25 Table 6 Menu structure Settings………………………………………………………………………………………………….. 26 Table 7 Operating the screen ………………………………………………………………………………………………………… 27 Table 8 Buttons in the footer………………………………………………………………………………………………………….. 28 Table 9 Operating the list view ………………………………………………………………………………………………………. 30 Table 10 Status messages ……………………………………………………………………………………………………………… 30 Table 11 Test view buttons……………………………………………………………………………………………………………… 31 Table 12 “Test result” screen…………………………………………………………………………………………………………… 32 Table 13 Proceeding with the test report …………………………………………………………………………………………… 33 Table 14 Smart menu Main menu …………………………………………………………………………………………………. 33 Table 15 Database structure (exemplary) …………………………………………………………………………………………. 34 Table 16 Database contents……………………………………………………………………………………………………………. 34 Table 17 Functions of the “Automatic test” ………………………………………………………………………………………… 39 Table 18 Leakage current measurement (test standard and protection class) ……………………………………….. 45 Table 19 PRCD tests ……………………………………………………………………………………………………………………… 47 Table 20 Setting options for system data ………………………………………………………………………………………….. 56 Table 21 Network settings ………………………………………………………………………………………………………………. 58 Table 22 “Test procedure” screen …………………………………………………………………………………………………… 62 Table 23 How to manage templates …………………………………………………………………………………………………. 64 Table 24 Functions of the “Database administration” ………………………………………………………………………….. 65 Table 25 “Devices” screen………………………………………………………………………………………………………………. 66 Table 26 Display, time and language ……………………………………………………………………………………………….. 70 Table 27 Maintenance schedule………………………………………………………………………………………………………. 96 Table 28 Technical data …………………………………………………………………………………………………………………. 100 Table 29 Test procedures according to EN 50678 (VDE 0701) and EN 50699 (VDE 0702) for Class I ……… 102 Table 30 Overview of test procedures according to EN 50678 (VDE 0701) and EN 50699 (VDE 0702) for
Class I (1 to 16) ……………………………………………………………………………………………………………….. 104 Table 31 Overview of test procedures according to EN 50678 (VDE 0701) and EN 50699 (VDE 0702) for
Class I (17 to 32) ……………………………………………………………………………………………………………… 104 Table 32 Test procedures according to EN 50678 (VDE 0701) and EN 50699 (VDE 0702) for Class II …….. 104 Table 33 Test procedures according to EN 50678 (VDE 0701) and EN 50699 (VDE 0702) for Class III ……. 105 Table 34 Overview of test procedures according to EN 50678 (VDE 0701) and EN 50699 (VDE 0702) for
Class II (1 to 6) / Class III (1) ……………………………………………………………………………………………… 105 Table 35 Test procedures according to EN 62353 (VDE 07511) for Class I ………………………………………….. 105 Table 36 Test procedures according to EN 62353 (VDE 07511) for Class II …………………………………………. 106 Table 37 Overview of test procedures according to EN 62353 (VDE 07511) for Class I (1 to 5) / Class II
(1 to 2) ……………………………………………………………………………………………………………………………. 106 Table 38 Test procedures according to EN 60974-4 (VDE 05444) for Class I……………………………………….. 106

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List of tables
Table 39 Test procedures according to EN 60974-4 (VDE 05444) for Class II………………………………………. 106 Table 40 Overview of test procedures according to EN 60974-4 (VDE 05444) for Class I (1 to 3) /
Class II (1) ………………………………………………………………………………………………………………………. 107 Table 41 Manual test procedures according to EN 50678 (VDE 0701) and EN 50699 (VDE 0702) …………… 107 Table 42 Manual test procedures according to EN 62353 (VDE 0751-1)……………………………………………….. 108 Table 43 Manual test procedures according to EN 60974-4 (VDE 05444) ……………………………………………. 109 Table 44 Overview of test standards ………………………………………………………………………………………………… 110 Table 45 Overview of test steps ………………………………………………………………………………………………………. 111 Table 46 Factory settings of the limits for protective conductor resistance tests (conductor 5 m, 1.5 mm2) .. 111 Table 47 Measured values according to measuring specifications Protective conductor resistance tests… 111 Table 48 Factory settings of the limits for insulating resistance tests…………………………………………………….. 112 Table 49 Measured values according to measuring specifications Insulating resistance tests ……………….. 112 Table 50 Factory settings of the limits for protective conductor current test……………………………………………. 113 Table 51 Factory settings of the limits for contact current test ……………………………………………………………… 113 Table 52 Factory settings of the limits for leakage current test …………………………………………………………….. 113 Table 53 Protective conductor resistance Alternative leakage current measuring method …………………….. 113 Table 54 Measured values according to measuring specifications Differential current measuring method . 113 Table 55 Measured values according to measuring specifications Direct current measuring method ……… 114 Table 56 Measured values according to measuring specifications Functional test ……………………………….. 114 Table 57 Factory settings of the limits for cable continuity test …………………………………………………………….. 114 Table 58 Measured values according to measuring specifications Cable continuity test ……………………….. 114 Table 59 Measured values according to measuring specifications Safety extra-low voltage test ……………. 115 Table 60 Factory settings of the limits for PRCD-AC…………………………………………………………………………… 115 Table 61 Factory settings of the limits for PRCD-A und PRCD-F………………………………………………………….. 115 Table 62 Factory settings of the limits for PRCD-B und PRCD-B+ ……………………………………………………….. 115 Table 63 Factory settings of the limits for PRCD 2-pin, 3-pin, K, S and S+ ……………………………………………. 115 Table 64 Measured values according to measuring specifications PRCD …………………………………………… 115 Table 65 Factory settings of the limits for voltage of the welding circuit test …………………………………………… 116 Table 66 Measured values according to measuring specifications Voltage of the welding circuit test……… 116 Table 67 Factory settings of the limits for times …………………………………………………………………………………. 116

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Introduction 1.1 Naming convention

1 Introduction

The appliance tester BENNING ST 755+ / ST 760+ described here (in the following only referred to as “device”) is intended for the safety testing of electrical test samples (DUTs). The basic versions of the device enable you to perform the following tests and measurements:

Standard

Measurement

EN 50678 (VDE 0701)

Test procedure for electrical devices after repair

EN 50699 (VDE 0702)

Test procedure for electrical devices in case of periodic testing

EN / IEC 62353 Periodic testing and tests after repair of (VDE 07511) medical electrical devices or systems

EN / IEC 609744 Periodic inspection and testing of arc (VDE 05444) welding equipment

ST 755+ X X X –

ST 760+ X X X X

Further information
https://tms.benning.de/st760plus-st755plus

1.1

On the Internet, you will find the following additional information directly at the specified link or at www.benning.de (product search):
· Operating manual of the device in several languages · Further information depending on the device (e. g. brochures, technical reports, FAQs)
Naming convention

Battery

In this operating manual, the term “battery” is used to refer to accumulators.

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Introduction 1.2 General notes

1.2

General notes

Target group
This operating manual is intended for the following groups of people: · Qualified electricians and electrotechnically trained personnel
Required basic knowledge
To understand these operating manual, you will need general knowledge of testing and measuring equipment. Moreover, you will need basic knowledge of the following issues:
· General electrical engineering
Purpose of the operating manual
This operating manual describes the device and provides you information about how to handle it. Keep this operating manual in a safe place for later use. Read this operating manual before handling the device and follow the instructions.
NOTE
Disclaimer of liability Please make sure that any person using the device has read and understood the instructions of this operating manual before handling the device and that the instructions are adhered to in all points. Non- observance of this operating manual might result in product damage, property damage and/or personal injury. Benning assumes no liability for damage and malfunctions resulting from the failure to observe the instructions in this operating manual.
The devices are subject to continuous further development. Benning reserves the right to make changes to the device’s design, configuration and technology. The information in this operating manual corresponds to the state of technical knowledge at the time of printing. For this reason, no claims for certain device characteristics can be derived from the contents of this operating manual. Information in this operating manual can be changed at any time without prior notice. Benning is not obligated to make amendments to this operating manual or to keep it up to date. Direct any technical questions to Technical Support [} page 12].
Figures and drawings
This operating manual includes figures and drawings for general illustrative purposes. The functional possibilities and representations can deviate from the present device.
Test standards
The content of this operating manual is intended to describe the appliance tester and in no way replaces the currently applicable test standards.

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Introduction 1.3 History
Trademarks
All trademarks used are the property of their respective owners, even if they are not separately marked as such.

Declaration of conformity
The declaration of conformity for this device is held by the manufacturer for the responsible authority. You can request it from Technical Support [} page 12].

1.3

History
Release number 08/2023 Table 1: History

Amendments · Initial release

1.4

Service & support
Please contact your specialty retailer or the BENNING Service Center for any repair or service work that might be required.

Technical Support

Please contact our Technical support for technical questions on handling the device.

Phone: Fax: E-Mail: Internet:

+49 2871 93-555 +49 2871 936555 helpdesk@benning.de www.benning.de

Returns management

Easily and conveniently use the BENNING returns portal for a quick and smooth returns processing:
https://www.benning.de/service-de/retourenabwicklung.html

Phone: E-Mail:

+49 2871 93-554 returns@benning.de

Return address
BENNING Elektrotechnik und Elektronik GmbH & Co. KG Retourenmanagement Robert- Bosch-Str. 20 D – 46397 Bocholt

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Safety 2.1 Warning system

2
2.1

Safety
Warning system
This operating manual contains notes that must be taken into consideration for your personal safety and in order to avoid injuries and damage to property. Warnings about your personal safety and to prevent personal injuries are marked with a warning triangle. Warnings on sole prevention of material damage are shown without a warning triangle. The warnings are shown in descending order depending on the hazard level as follows.

DANGER
Extremely dangerous situation for humans If you do not pay attention to this warning, irreversible or deadly injuries will occur.

WARNING
Hazard to humans If you do not pay attention to this warning, irreversible or deadly injuries could occur.

CAUTION
Minor hazard to humans If you do not pay attention to this warning, minor or moderate injuries could occur.

2.2

NOTICE
Danger to property, not to persons If you do not pay attention to this warning, material damage could occur.
If multiple hazard levels occur, the warning for the highest respective hazard level will be used. In addition, a warning about personal injuries can also include a warning about material damage.
Standards applied
The device has been built and tested in compliance with the following standards and has left the factory in perfectly safe condition.
· IEC / DIN EN 60529 (VDE 04701) · IEC / DIN EN 61010-1 (VDE 04111) · IEC / DIN EN 61010-2032 (VDE 04112032) · IEC / DIN EN 61010-031 (VDE 0411031) · IEC / DIN EN 613261 (VDE 0843-201) · IEC / DIN EN 61557-1 (VDE 04131) · IEC / DIN EN 61557-2 (VDE 04132) · IEC / DIN EN 61557-4 (VDE 04134) · IEC / DIN EN 61557-6 (VDE 04136) · IEC / DIN EN 61557-16 (VDE 041316)

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2.3

Symbols used

Safety 2.3 Symbols used

Symbols on the device
Symbol
CAT II

Meaning Please observe the information provided in this operating manual in order to avoid dangers. Warning of electrical danger! Please observe the information provided in this operating manual in order to avoid dangers. Measuring category II is applicable to testing and measuring circuits which are directly connected to user connections (e. g. sockets) of the low-voltage mains installation. The device complies with EU directives.
The device complies with directives applicable in Great Britain.
At the end of product life, dispose of the unserviceable device via appropriate collecting facilities provided in your community. The device is provided with protective insulation (protection class II).
Please observe the operating manual.
(DC) direct voltage or direct current
(AC) alternating voltage or alternating current
Earth (voltage to earth)
Bluetooth
WLAN
SD memory card
USB interface PC MicroUSB interface
Network interface

Table 2: Symbols on the device

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Safety 2.4 Intended use

2.4

Intended use
Only use the device within the framework of the corresponding technical data. Any operating conditions that deviate from this shall be considered as improper use. Solely the user of the device shall be liable for any resulting damage.
Please note the following:
· In case of improper use, the liability and warranty claims become void. Solely the user of the device shall be liable for any damage resulting from improper use. Uses not complying with the intended use include e. g.:
Hardware or software changes without the knowledge and approval of Benning
Use of components, accessories, spare or replacement parts that have not been released and approved for the respective application by Benning
Non-observance, manipulation, changes or misuse of the operating manual or the instructions and notes contained therein
Any form of misuse of the device
Any use other than or beyond that described in this operating manual
· Warranty and liability claims are generally excluded if the damage is the result of force majeure.
· If any prescribed services are not performed regularly or not on time, according to the manufacturer’s specifications during the warranty period, a decision about a warranty claim can only be made once the findings are available.
Direct any questions to Technical Support [} page 12].

Using the device
Please observe the following basic obligations when using the device:
· The device may only be used in a technically perfect and safe condition. Always check the device for damages before using it.
· The personnel must be qualified for the respective task.
· Electrical safety tests of portable electrical equipment can be carried out by competent persons or qualified electricians. Due to the definitions of the German technical guideline for operational safety “Competent persons Specific requirements Electrical hazards” (TRBS “Befähigte Personen Besondere Anforderungen Elektrische Gefährdungen”), it is no longer possible to let the testing be carried out only by electrotechnically trained persons. However, the electrotechnically trained person can take over tasks in a testing team (e. g. qualified electrician / electrotechnically trained person) within the framework of periodic tests and thus support the qualified electrician.
· Observe relevant regulations on occupational safety and health as well as those on environmental protection.
· The device may only be used inside buildings and in dry environments.
· Do not use the device in potentially explosive environments.
· Use suitable (approved) safety measuring lines.
· Use suitable (approved) safety measuring accessories.
· Operate the display only with your fingers or the rubberised side of the enclosed stylus. Doing this, do not apply any pressure to the display.
· Use the device only in a TN, TT or IT power supply network [} page 56] with a maximum of 230 V + 15 % / 400 V that complies with the applicable safety regulations.
· Connect the device only to a single-phase mains with 230 V, 50 Hz and a pre- fuse of 16 A.
· Do not connect any external voltage to the test socket, to the built-in jacks or the IEC connector.

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Safety
2.4 Intended use
· The device is not intended for measurements in electrical installations! The test sample must be free of external voltage (disconnected from the mains).
· For the testing of test samples with the warning “High leakage current!”, the test must be carried out by qualified electricians only!
· For device protection and for functional testing, the test voltages are monitored. In case of a fault, an error will be indicated on the display. Measurement will be interrupted. In case of a fault current of 25 mA, the device will be switched off within a period of 100 ms to 200 ms.
· In order to detect short-circuits and body contacts occurring behind the switch-on elements (e. g. switch, thermostat, relay) of the test sample, the test sample must be switched on.
· Tap the “Pause” button to interrupt the measurement. During the pause, the test socket remains live!
WARNING
Dangerous voltage Danger to life or serious injury is possible due to contact with high electric voltage in case of incorrect operation.
· Do not touch the bare measuring probe tips of the safety measuring lines or the bare contacts of the optional alligator clips, Only touch the safety measuring lines in the area intended for your hands.
· Please note that dangerous testing voltages might be present at the device during insulating resistance measurement. These might also be applied to the measuring circuit if safety measuring lines are contacted.
· Connect the safety measuring lines to the correspondingly marked measuring jacks of the device and check them for tight fit.
· Only use approved safety measuring lines. · Attach the protective caps to the contact tips of the safety measuring lines (circuits of
overvoltage category CAT III or IV). · When disconnecting the measuring circuit, first remove the live safety measuring line
(phase) and then the neutral safety measuring line from the measuring point.
Securing the device
If the device is not in a technically perfect and operationally safe condition, safe operation is no longer guaranteed. Make sure that the following measures are taken:
· Switch off the device. · Remove the device from the measuring point. · Secure the device against unintentional operation. The following characteristics indicate that safe operation is no longer guaranteed: · The device (housing, connecting cables, plugs or safety measuring lines) shows visible
damage or is damp/wet. · The insulation of the safety measuring lines is damaged. · The device does not work properly in compliance with regulations (e. g. errors during
measurements). · The device shows recognisable consequences of prolonged storage under inadmissible
conditions. · The device shows recognisable consequences of extraordinary stress due to transport.

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Safety 2.5 Special types of risks

2.5

Special types of risks

DANGER
Bare conductors or main line carriers Danger to life or serious injury is possible due to contact with high electric voltage when working with bare conductors or main line carriers.
· Please observe relevant regulations on occupational safety and health. · If necessary, use appropriate protective equipment.

WARNING
Dangerous voltage Danger to life or serious injury is possible due to contact with high electric voltage when working on live components or equipment. Even low voltages from 30 VAC and 60 VDC on can be dangerous to human life!
· Please observe relevant regulations on occupational safety and health.
· If necessary, use appropriate protective equipment.

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Scope of delivery
2.5 Special types of risks
3 Scope of delivery
The scope of delivery of the device includes the following components: · 1 x appliance tester BENNING ST 755+ (item no.: 050332) or appliance tester BENNING ST 760+ (item no.: 050334) · 1 x SD memory card 4 GB (item no.: 10003760) · 2 x safety measuring line (black / red) (item no.: 10173716) · 1 x mains cable (3 x 1.5 mm², l = 500 mm), shock-proof plug to IEC connector (item no.: 10009127) · 1 x 2 m test probe, 2-pin, (black) with 4 mm probe tip and double plug-in contact (item no.: 10150829) · Set of safety measuring lines BENNING TA 1 (item no.: 044124) Ø 4 mm alligator clips, 2piece, red / black, professional version, CAT III 1000 V, 36 A · 1 x input stylus for touchscreen operation (item no.: 10009128) · 1 x quick reference guide
Optional accessories
Software: · PC software BENNING PC-Win ST 750-760 (item no.: 047002)
Barcode scanners and labels: · 1D-USB barcode scanner for reading 1D barcodes (item no.: 009369) · 1D/2D barcode scanner with USB for barcodes, QR codes and Data Matrix codes, (item number: 009373) · 1D/2D cordless barcode scanner with Bluetooth® function (item no.: 009374) · PVC barcode labels with consecutive numbering on rolls (rolls of 1000 pieces) (item no.: 756301), further number ranges available (up to item no.: 756310)
RFID scanner and tags: · Multi-frequency RFID scanner for reading out the UID no., with USB interface (item no.: 009372) · RFID tag, self-adhesive, for attachment onto the housing, diameter: 18 mm, PU (packaging unit) = 100 tags (item no.: 044156) · RFID tag (tag-type), for attachment by means of cable ties, l 43 mm x w 34 mm, PU = 100 tags (item no.: 044158)
Printer, labels and badges: · Portable label and log printer BENNING PT 2 (item no.: 10225404) · Test badges “next test” (300 pieces, item no.: 756212) · Label rolls for BENNING PT 2 (item no.: 10225408) · Thermographic paper rolls for BENNING PT 2 (item no.: 10225407) · Thermographic paper refill rolls for BENNING PT 1 (20 pieces, item no.: 044151)
Test probes: · 5 m test probe, 2-pin, (black) with 4 mm probe tip and double plug-in contact (item no.: 10154024) · 2 m test probe, 2-pin, (black) with 4 mm probe tip and double plug-in contact (item no.: 10150829) · Brush probe for gentle contacting of accessible conductive parts (item no.: 10217861)

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Scope of delivery
2.5 Special types of risks
Keyboards: · Industrial keyboard with USB interface (item no.: 044154) · Wireless keyboard with USB receiver (item no.: 044161)
Leakage current clamp and measuring adapters: · TRUE RMS leakage current clamp BENNING CM 91 (item no.: 044682) or BENNING CM 92 (item no.: 044685) for measuring leakage current, differential current and protective conductor current (complies with EN 6155713, EN 6155716). · Measuring adapter for BENNING CM 91 / CM 92, for IPE measurements (using the differential current and direct current measuring method) as well as load current measurements. The conductors are led through individually and provided with double insulation: 16 A CEE coupling CEE connector, 5-pin (item no.: 044127) 32 A CEE coupling CEE connector, 5-pin (item no.: 044128) Shock-proof plug / coupling, single-phase (item no.: 044131)
Measuring adapters for single-phase and three-phase loads: · BENNING MA 4 measuring adapter, (16 A CEE 3-pin, 16 A/32 A CEE 5-pin) for singlephase /three-phase loads with CEE extension cables (item no.: 044162) · Mains connection cable for BENNING MA 4 measuring adapter, 16 A CEE connector 32 A CEE coupling, 5-pin (item no.: 044163) · BENNING MA 3 measuring adapter, (16 A CEE 3-pin, 16 A/32 A CEE 5-pin) for singlephase/three-phase loads with CEE extension cables (item no.: 044159) · BENNING MA 216 measuring adapter, (16 A CEE 3-pin, 16 A/32 A CEE 5-pin) for threephase loads (item no.: 044160) · Measuring adapter 3-fold CEE (16 A CEE 3-pin, 16 A/32 A CEE 5-pin) for single- phase/ three-phase loads (item no.: 044147) · Measuring adapters for single- phase/three-phase loads: 16 A CEE coupling (5-pin) shock-proof plug (item no.: 044122) 32 A CEE coupling (5-pin) shock-proof plug (item no.: 044123) 16 A CEE coupling (3-pin) shock-proof plug (item no.: 044143) 32 A CEE coupling (3-pin) shock-proof plug (item no.: 044144)
Third-party software
· PC software “cerhost.exe” for remote control of the device [} page 118] Direct download: https://forum.fs-net.de/wcf/index.php?attachment/379-cerhost- zip/ Download overview (download cerhost.zip only): https://forum.fs- net.de/index.php?thread/4391-cerhost-display-and-control-yourwindows-ce- device-from-your-desktop/
· “CerHost” app from Microit Electronics SRL for remote control of the device [} page 118] You can find the AndroidTM or iOSTM app in the respective app store under the search term “CerHost”.

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4
4.1
4.2

Transport and storage

Transport and storage 4.1 Packing and transport

Packing and transport
Damage due to improper transport will result in exclusion of liability. Make sure that the following measures are taken:
· Do not expose the device to shocks. · If the device has been transported under conditions deviating from the operating
temperature or maximum relative air humidity specified in the Technical data [} page 100], the device needs an acclimatisation phase of at least two hours before being switched on. · Please keep the original packaging for later dispatch (e. g. for calibration). · Dispatch the device in its original packaging only. Transport damages due to improper packaging are excluded from warranty. If the original packaging is no longer available, you can reorder it from the returns management [} page 12]:
Outer package (item no.: 10043820) Moulded parts (item no.: 10043821)
Storage

NOTICE
Improper storage The device can be damaged due to improper storage.
· Follow the conditions for storage indicated.
Ensure the following measures during storage: · Close the device case before storing the device. · Store the device in a suitable location. Storage locations with the following conditions are recommended: Dry and dust-free spaces No direct exposure to sunlight Keep away from chemical substances · Do not store the device outdoors without protection. · Ensure that the values in the technical data [} page 100] for the following ambient conditions are adhered to at the storage location: Storage temperature Relative humidity (non-condensing) · Condensation can form if there are large temperature fluctuations. Ensure that the permissible value of 20 K per hour is not exceeded at the storage location. · For optimum storage, the device case is equipped with an automatic pressure valve near the carrying handle on the front of the device case.

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Device description 5.1 Device structure
5 Device description

5.1

Device structure
The device comes in a closable device case. The cover of the device case can be removed via two cotter pins in the hinges.
12 3 4 5 6 78

Figure 1: BENNING ST 755+ / BENNING ST 760+ device structure

1 Mains switch (O I)
3 Black measuring jack “+” for test probe 5 Red measuring jack “+” for open- circuit
voltage (Ua)
7 Green-yellow calibration jack “PE”
9 Test socket 11 SD memory slot 13 USB Mini-B interface 15 7″ touch display

2 Black measuring jack “-” for test probe and open-circuit voltage (Ua)
4 IEC socket for cable test
6 Black “L” jack (is connected to the “L” of the test socket, connection is disconnected when mains voltage is applied to the test socket)
8 Blue “N” jack (is connected to the “N” of the test socket, connection is disconnected when mains voltage is applied to the test socket)
10 Type plate
12 USBA interfaces
14 Ethernet interface
16 Mains connection cable

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Device description 5.2 Type plate

Built-in battery
· The device is provided with an integrated battery in order to maintain operation in the event of a power failure or when changing the test station. Do not switch off the device if you disconnect the mains supply due to a test station change.
· The correct battery state of charge (SoC) is only displayed after the first full charge to 100 %. The SoC remains at 0 % until full charging has been completed.
· As soon as the battery has been discharged to 0 %, the battery will initially charge slowly (approx. 30 minutes). Then, the actual charging takes place with a higher charging current.
· If the battery is exhausted and the power supply from the mains is missing, the device switches off automatically. It is recommended to always switch off the device after use via the ON/OFF.
· The battery will be charged automatically in mains operating mode with the device being switched on.

5.2

Type plate
The type plate is located inside the housing case on the left side of the device. When contacting our Technical support [} page 12], have the serial number of the device at hand. You will find the serial number on the type plate.
The following figure shows an example of the setup of the type plate:

1 2

13 15

20
Figure 2: Type plate (exemplary)
1 Manufacturer or sales partner 3 CE marking 5 Serial number 7 Item number 9 Option number 11 Type of current at the input 13 Nominal input frequency [Hz] 15 Nominal output voltage [V] 17 Nominal output current [A] 19 Protection category (with device being
open)

19
2 Product type / product classification 4 Series 6 Year of manufacture 8 Software version 10 Operating mode 12 Type of current at the output 14 Nominal input voltage [V] 16 Nominal input current [A] 18 Protection class 20 Barcode

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Device description 5.3 Screen setup

5.3

Screen setup
The screen is divided into different sections. The display of these sections may change during operation.

Display
1

Header

Figure 3: Screen layout 1 Header 3 Footer

2 Information screen

Various pieces of information and buttons are displayed in the header. Header content: General symbols and buttons:

Symbol

Designation Battery
Memory card

Description
Indicates the state of charge of the battery.
Indicates an inserted SD card.

Network connection USB

Indicates an existing network connection (LAN, WLAN).
Indicates an existing USB connection.

Bluetooth

Indicates an existing Bluetooth® connection.

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Device description 5.3 Screen setup

Symbol

Designation Menu

–

Menu designation

Table 3: General symbols and buttons in the header Symbols for test sample and protection class:

Symbol

Designation Class I

Description Displayed in the “Automatic” menu. Tapping the button opens the main menu of the “Smart menu”.
The menu designation of the currently opened menu is displayed on the left in the header.
Description Protection class 1

Class II

Protection class 2

Class III

Protection class 3

–

Test sample acc. to VDE 0701/ 0702

–

Test sample acc. to VDE 07511

–

Test sample acc. to VDE 05444

Footer

Table 4: Symbols for test sample and protection class in the header
Various pieces of information and buttons are displayed in the footer. Footer content: · Date and time · Buttons for operation [} page 28] · Version number (GUI) · Device type

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Device description 5.4 Menu structure

5.4

Menu structure

Menu structure Main menu
Main menu Automatic testing VDE 0701-0702 Devices with PE (Class I) Devices without PE (Class II) SELV (Class III) Reference to Settings & Help VDE 07511 Devices with PE (Class I) Devices without PE (Class II) Reference to Settings & Help VDE 05444 / EN 609744 Devices with PE (Class I) Devices without PE (Class II) Reference to Settings & Help Settings [} page 26] Help Help texts Logout
Table 5: Menu structure Main menu

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Menu structure Settings
Settings System settings System data Device data Network Information Host name LAN IPv4 WLAN IPv4 WLAN networks Remote control Information Bluetooth Database User administration Expert settings Customer-specific limits Customer-specific visual inspection Customer-specific test procedures Update (GUI, firmware) Via USB stick Via network Factory settings Templates Test procedures Visual inspection Device templates Balance / calibration ZERO balance Cable calibration Probe calibration Display, time, language Time Date Language Brightness Touch calibration
Table 6: Menu structure Settings

Device description 5.4 Menu structure

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General operation 6.1 Switching the device ON/OFF

6
6.1 6.2

General operation
You can operate the device via the 7 touch display. By tapping buttons you can navigate through the menu, set functions and parameters and carry out measurements. This chapter describes the basic operation of the device.

Switching the device ON/OFF
Plug the mains connection cable into a shock-proof socket (230 V, 50 Hz, 16 A). To switch the device on, set the mains switch to position “I”. After the start sequence, the device carries out a self-test and shows the “Registration / login” [} page 28] screen.

Operating elements

Setting options Button

Example

Description Tap the button to open a menu.

Buttons in the footer (e. g.: “New”) Input line

Error message

–

Soft keyboard

–

Button
(e. g. probe calibration)
Table 7: Operating the screen

Tap the button to open a screen with further setting options.
Input window for text input. Tap the input window to display the soft keyboard.
Will be displayed in the event of an error. Follow the instructions.
To enter text, a soft keyboard appears on the display. Tap the displayed soft keys to make your entries.
Tap the “Enter” button to confirm the input. The soft keyboard is hidden automatically.
Tap the keyboard icon to show or hide the soft keyboard. Hiding the soft keyboard terminates the input.
Writing upper and lower case letters:
· Lower case
· Beginning of word with upper case
· Permanently upper case (tap and hold the soft key for 2 seconds)
Starts a test or measurement.

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General operation 6.3 Login

6.3

Procedure

1. Switch on the device [} page 27]. After the start sequence, the device shows the “Registration / login” screen.
2. Select a user. To do this, tap the “Name” input line. The “User” screen is displayed.
3. Select a user (e. g. admin or guest). You do not need any password to log in as a guest user. You will have limited access to the functions of the device.
4. Enter the password. Preconfigured default password of the admin user: Benning If the password has been entered incorrectly, the following message appears on the “Registration / login” screen: “Wrong name or password!” In this case, correct your entry and confirm the login again. If you have forgotten your password, you can have it recovered [} page 99].
5. Optionally: Enter an order number. The order number will appear in the later test report. 6. Confirm your entry. To do this, tap the “Log on” button.
The main menu is displayed. To prevent unauthorised access, replace the preconfigured default password and create new users if necessary. [} page 64].

6.4

Buttons in the footer

Button Copy
Search Save Help Back OK Start New
Delete Update (WLAN networks) Connect (WLAN networks) Disconnect (WLAN networks) All inactive (device properties)

Description Copies a parameter entry and opens a new screen to display the contents. On this screen, the copied parameter entries can be adjusted. This facilitates, for example, the creation of test sample templates (device templates). Searches for Bluetooth® connections. Saves the input. Opens the help menu. Returns to the previous menu. The input is cancelled. Confirms a selection or input. Starts the selected test or measurement. Creates a new parameter entry (customer, department, test sample, etc.). Deletes the selected parameter. Searches for new WLAN networks [} page 58].
Connects to the selected network.
Disconnects from the selected network.
Disables (OFF) all parameters in the list [} page 58].

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General operation 6.5 Operating the list view

6.5

Button

Description

All active (device properties)

Enables (ON) all parameters in the list.

Reset (device properties)

Enables (ON) all parameters. The settings are saved automatically.

Reset (test)

Deletes a faulty measured value during the ongoing test.

Check (database)

Checks the database for errors.

Rename

Opens an input window for assigning a new name.

Limits (test)
Save (limits)

Opens the limit settings and allows the modification of limits for the active test [} page 60]. Stores modified limits temporarily [} page 36].

Reset (limits)

Resets all temporarily changed customer-specific limits to the default limits (factory settings) [} page 36].

Overwrite (limits)

All changed limits are set permanently as new default limits [} page 36].

Test procedure

Opens the “Test procedure” screen where the test procedure can be adjusted individually.

Closes the opened database.

Table 8: Buttons in the footer

Operating the list view

Figure 4: General operation 1 Parameters (left side of the list view)

3 Smart menu Device templates (test sample templates)
5 Smart menu Page selection (exemplary)
7 Button in the footer (exemplary)

5
2 Status messages/ selected parameter entry (right side of the list view)
4 Smart menu (main menu)
6 Smart menu Test standard selection (exemplary)
8-

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General operation 6.5 Operating the list view

Operating options

Operation

Example Description

Scrolling through lists

– Swipe up or down on the left half of the list view to scroll through the list.

Selecting parameters

– Tap the parameter in the left half of the line to select it (highlighted in blue). Further entries can be made using the buttons in the footer.

Selecting parameter entries

Tap the right half of the line to open a selection window with parameter entries (e. g. customer names, test sample templates …).

Filling parameter entries

Tap the right half of the line to open an input window and the soft keyboard for adding new entries.

Enabling and disabling parameters

Tap the slider to enable (ON) or disable (OFF) the parameters. If the setting requires the authorisation of the “Admin” user or is not possible due to another setting, the slider is greyed out (light grey) in the given position and cannot be changed.

Table 9: Operating the list view

Status messages

The status displays the last parameter entry created or selected. If no parameter entry is selected, one of the following status messages will be displayed:

Status message “not selected” “(empty)”
“(display all)”
“Connecting” “Connected waiting for IP” “Connected” Table 10: Status messages

Description
The parameter has not yet been created or selected.
If the department (empty) is selected, all the test samples that are not assigned to any department will be displayed.
If the department (display all) is selected, all test samples will be displayed independently of their assignment to a department.
A connection to the network is being established.
The device is waiting for an IP address being assigned by DHCP.
The device has been successfully connected to the network and the connection is active.

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General operation 6.6 Operating the test view

6.6

Operating the test view

Figure 5: Test view

1 Selectable parameter

3 Display area for measurement details

5 Connection diagram (Tap to enlarge the screen.)

3
2 Selected parameter entry (Tap to open the selection window.)
4 Buttons for measurement-specific settings for the duration of the test.
6-

Operating the test view
Button Start Stop
Pause
Next Reset
Limits Polarity reversal time

Description
Starts the test.
Automatic test: The test is stopped. The “Automatic test” screen opens.
Manual test: The individual test is completed. The intermediate view of measuring results is displayed.
The measurement is paused.
Is used when changing the position of terminals or test probes to avoid incorrect measurement.
Continues the paused measurement.
Deletes incorrect measured values (only works when the test is running).
The test duration is reset. “Limits” [} page 60] and “Polarity reversal time” [} page 40] can be changed for the duration of the test.

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Button

General operation 6.6 Operating the test view
Description For reversing the polarity of the test voltage during manual individual tests.

Cable (On/Off)
Offset (On/Off) Done Table 11: Test view buttons

Is enabled for the detection of defects on cables / mains connection cables.
ON = The protective conductor is continuously checked for cable breaks. For this test step, the “RPE test repetition” [} page 56] setting is temporarily switched off.
OFF = The continuous check for cable breaks of the protective conductor is switched off. For this test step, the “RPE test repetition” setting remains switched on.
Enables / disables the offset by means of a measuring adapter during the test. To do this, specify the internal resistance of the measuring adapter under: “Settings >System settings >RPE resist. test adapter”
Completes the test and goes to the “Test result” test report.

Eliminating measuring errors
If a measured value is outside the set limits, it will be displayed in red font. In this case, the test sample will not pass the test. 1. Establish a proper connection between the test probe and the contact point of the test
sample. 2. Tap the “Reset” button while the measurement is active or running.
The maximum value will be overwritten by the currently measured value. If the measured value is lower than the defined limit, the test is passed.

Test report “Test result”

At the end of a test procedure, the test result is displayed in the form of a test report. Fill in the following information:

Setting options

Description

Device *Manual test

Select the test sample: Tap the right side of the “Change” line to select the test sample from the database or to create a new test sample.

Test type

Select the test type:

· Periodic testing (VDE 0702)

· Test after modification (VDE 0701)

· Test after repair (VDE 0701)

· Receiving inspection (VDE 0702)

Note

Add a comment regarding the test / test sample: Tap the right side of the “Change” line to open an input window for adding comments.

Table 12: “Test result” screen

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General operation 6.7 Operating the Smart menu

Then, you can proceed as follows with the test reports:

Button

Description

If a log printer is available, the “Test result” test report can be printed directly.

Discard

Deletes the “Test result” test report and finishes the test procedure.

Save

Saves the “Test result” test report in the database. You can read it out via your PC [} page 35].

Table 13: Proceeding with the test report

6.7

Operating the Smart menu

In the automatic testing function, you can find the “Smart menu” [} page 29]. In the Smart menu, use the “Device templates” (test sample templates) and the “Auto-ID” function to quickly create a new test sample with the subsequent ID. This speeds up the creation of new test samples.

Button Device template
Device template Quick selection button

Description
Here, you can select from previously created test sample templates [} page 63].
Tap the quick selection button to create test samples and edit them as required. These test samples will be assigned to the selected database and the customer. If the “Auto-ID” function is enabled, the next free ID will be assigned to the test sample. If the “Auto-ID” [} page 56] function is not enabled, the “Device” screen will be displayed to enter the ID (test sample properties).
*Example of a quick selection button for a test sample of type “PRCDAC”

Device data Favourites AutoID
Standards

Quick access to the device data [} page 58].
Quick access to menus and manual measurements.
Intended to specify the next free auto-ID. This might be necessary, for example, if a barcode roll with a new, consecutive (n+1) identification number shall be used.
Select the test standard. (Filter function for displayed test sample templates)

Page selection

“Scrolls” to the next page.

Table 14: Smart menu Main menu
Procedure Creating a test sample
1. Select a database and a customer. 2. Create a test sample (device). To do this, go to the “Device templates” menu, tap the
“Standards” button (note the page selection) and select the corresponding test sample template [} page 37] (quick selection button). If the “Auto-ID” [} page 56] function is not enabled, enter the desired ID.

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7 Functions

Functions 7.1 Database

7.1

Database
The “Database” menu is intended to manage the following contents [} page 65]: · Database names · Customer data · Department names · Test sample data
The database structure is as follows:
Database (e. g. sample) Customer (e. g. sample company) Department (e. g. purchasing) Test sample (e. g. PC 1) Test sample (e. g. printer 1) Test sample (e. g. printer 2) Test sample (e. g. coffee machine 1) … Department (e. g. sales) Test sample (e. g. PC 1) Test sample (e. g. printer 1) … Customer (e. g. sample company 2) Department (e. g. engineering) Test sample (e. g. PC 1) Test sample (e. g. phone 1) … Department (e. g. workshop)
Table 15: Database structure (exemplary)

Database contents
Parameter Database
Customer Department

Description
You can create multiple databases. The database name is assigned when a database is created. Afterwards, the database name can only be modified using the PC software (BENNING PCWIN ST 750760). It is not possible to edit measured values that have been stored.
You can create multiple customers for each database. The customer name is assigned when a customer is created and can still be modified afterwards.
You can create multiple departments for each customer. The department name is assigned when a department is created and can still be modified afterwards. If the department “(empty)” is selected, all the test samples that are not assigned to any department will be displayed. If “(display all)” is selected, all test samples will be displayed independently of their assignment to a department.

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Functions 7.2 Backup copies

7.2

Parameter

Description

Number

The number of test samples is displayed depending on the three parameters “Database”, “Customer” and “Department”.

ID no. / designation

These parameters are intended to manage test samples. The identification number and test sample designation (“device”) are entered for the unique naming of test samples. If there are already test samples in the database, the parameters of the last test sample created are automatically used for entering a new test sample. The use of previous test sample parameters helps to quickly create identical test samples (extension cables, multiple sockets etc.).

Designation Test acc. to

If a test sample is selected, these parameters are automatically taken over from the test sample data (“Device” screen).

Protection class

Test procedure

Table 16: Database contents

Backup copies
You can copy your database as well as measured values to your PC for backup.
To do this, use the medium of the selected storage location (SD card, USB stick) or connect to the device with a USB cable and access the data.

BENNING PC-Win ST 750760
The logging software is intended to manage databases and enables the following functions: · Create new databases · Export databases · Import existing databases · Edit, merge, clean, repair, compress databases · Control the print output · Create customer-specific test procedures · Create customer-specific visual inspections · Subsequently edit existing test reports

Backward compatibility
The ST 755+ / ST 760+ is backward compatible with the ST 755 / ST 760. If you also work with the ST 755 / ST 760, you can transfer the data to the ST 755+ / ST 760+.

Forward compatibility
The data from the ST 750 can be converted into the database format of the ST 755 / ST 760 / ST 755+ / ST 760+ using the logging software.

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Functions 7.3 User administration

7.3

User administration
The “User administration” menu is intended to manage the following user data and access rights [} page 64]:
· User name · User role (admin, user) · Company · Postal code · Place · Password The created users can be selected when logging on to the device.

User roles

· Users with guest status (user role: user) do not have access to the user administration and expert settings of the device after login. You do not need any password to log in.
· Users with admin status (user role: admin) are granted access to all functions of the device after login. You have to enter a password to log in.

7.4

Expert settings
The “Expert Settings” menu is intended to manage the following data: · Customer-specific limits · Customer-specific test procedures · Customer- specific visual inspection · Templates (customer-specific test questions and test procedures can be managed via the “Templates” menu item) · Reset to factory settings · Updating the GUI (Graphical User Interface) and the firmware
The expert settings can be changed only by users with admin status.

7.4.1

Customer-specific limits
The “Customer-specific limits” [} page 60] menu is intended to manage limits for manual tests and customer-specific test procedures.
The following limits can be modified:
· RPE (protective conductor resistance, line length, line cross-section) · RInsu (insulating resistance, testing voltage) · Cable (cable specifications)
· Ua (max. output voltage and open-circuit voltage of welding circuit) · PRCD (tripping current, tripping time, contact voltage)
· ICont (contact current values, differential current values) · ILeak (protective conductor current values, leakage current values, patient leakage current
values)
· Test times (definition of all test times for individual tests)
The preset limits correspond to the test specifications that have been applicable at the time of printing. Administration and definition of the customer-specific limits shall be at the discretion of the qualified electrician carrying out the work.

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Functions 7.4 Expert settings
Saving limits
The modified limits are stored temporarily (until the next restart of the device). The standard test procedures in the automatic measuring mode will not be changed. Newly created customerspecific test procedures receive the standard limits from the device, but not the temporarily changed limits.

Resetting limits
All temporarily changed customer-specific limits are reset to the default limits (factory settings).

Overwriting limits
All changed limits are set permanently as new default limits. The change applies after confirmation of the “Overwrite” button and affects all newly created customer-specific test procedures and all manual tests. The limits of the standard test procedures will not be changed.

Automatic determination of limits
If test values are calculated from different limits, they are automatically determined by the device.
Example for RPE acc. to VDE 0701 / 0702:
· The preset and admissible resistance value for a line length of 5 m and a cross-section of up to 1.5 mm2 is 0.3 .
· For each additional line length of 7.5 m, the admissible resistance value increases by 0.1 each.
· The maximum admissible resistance value is 1.0 .
· If you increase the line length to a value from >5 m to 12.5 m, the device automatically calculates the admissible resistance value.
· For cross-sections of more than 1.5 mm2 and other cable lengths, the limit is calculated using the following equation: R = * / + 0.1

7.4.2

Customer-specific visual inspection
The “Customer-specific visual inspection” [} page 61] menu is intended to manage individual test questions.
Here, you can create and save test questions. The saved test questions will be displayed on the “Questions” screen.

7.4.3

Customer-specific test procedures
You can access the created customer-specific test procedures via the automatic and manual tests of the device. Customer-specific test procedures can be assigned to both newly created test samples and already existing test samples [} page 61].

7.4.4

Customer-specific device templates
The “Customer-specific device templates” [} page 63] menu is intended to manage test sample templates.

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7.4.5
7.4.6 7.4.7
7.5

Functions 7.5 General test procedure
Test sample templates speed up the creation of test samples. The test sample templates are displayed in the Smart menu [} page 33] of the “Device templates” screen. Here, up to 72 customer-specific test sample templates can be defined for each database. This means that up to 24 test sample templates can be created for each standard.
Customer-specific templates
The “Templates” [} page 38] menu area is intended to manage the following data: · Customer-specific test procedures · Customer-specific visual inspections · Customer-specific device templates (test sample templates)
You can save customer-specific test sequences, visual inspections and test sample templates as cross-database templates on the device. In turn, you can copy these cross-database templates to specific databases.
Update
The “Update (GUI, firmware)” [} page 98] menu is intended to update the GUI and firmware of the device. You can install updates [} page 98] via an existing network connection of the device or by using a USB stick (max. 32 GB) on the device. If the device is connected to the Internet, it will automatically check for available updates. If an update is available, a query will appear on the display.
Factory settings
The “Factory settings” menu is intended to reset the device to its original settings. All system settings and changed limits will be lost. Databases are saved on the SD memory card and will be retained.
General test procedure
The device provides two testing options: The “Automatic test” and the “Manual test”. The following chapter provides a brief insight into both testing options and an overview of the terminology used.

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Functions 7.5 General test procedure

7.5.1

Automatic testing

Automatic testing is primarily intended for periodic testing and tests after modification or repair of test sample entries that have already been created [} page 76].
Depending on the test standard and protection class of the test sample, the device offers preconfigured test procedures. When creating a test sample entry, a test procedure is assigned to the test sample. This test procedure will be used and run during automatic testing.
Four different steps are used to manage databases, customers, departments and test samples. The following functions can also be selected on the “Automatic test” screen:

Button

Database

Customer

New

Change

–

Copy

–

Delete

–

Table 17: Functions of the “Automatic test”

Department
X X –

Test sample ID no. / Overdue devices
X
X
X
–

Overdue test samples
The device determines overdue test samples based on their last test date and the set test interval. To select a test sample that is overdue for testing, select a test sample using the “Overdue devices” line.
Test sample entries that are overdue for testing can be filtered out using the “Overdue devices” line. By default, the current date is entered as filter criterion. This setting shows you which test samples are already overdue on the date entered and need to be tested again. By tapping the “Overdue test samples” parameter, you can enter a future date that will show you test sample entries that need to be tested until this future date.

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Functions 7.5 General test procedure

7.5.2 7.5.3

Manual testing
Manual testing is intended for tests of electrical devices after repair or modification and for periodic testing [} page 77]. In the event of a fault on the test sample, a test after repair (EN 50678, VDE 0701) must first be carried out before period testing (EN 50699, VDE 0702) may be performed. The following manual tests according to specific standards are available:
· VDE 0701, VDE 0702 (electrical devices) · VDE 0751-1 (medical electrical devices) · VDE 0544-4 (power sources for arc welding) The device provides the following individual tests: · RPE (protective conductor resistance) · RInsu-1 (insulating resistance LN-PE) · RInsu-2 (insulating resistance sec.-PE) · RInsu-3 (insulating resistance LN-sec.) · RInsu-4 (insulating resistance LN- accessible parts without PE) · IPE (protective conductor current) · ICont (contact current) · ILeak (leakage current for medical electrical devices) · IPLeak (patient leakage current) · Funct. (functional test) · Cable (continuity test) · Ua (output voltage) · PRCD (portable residual current protection device) · Ua weld. (voltage welding circuit) · ICont weld. (contact current welding circuit) Depending on the test standard and protection class of the test sample, the device provides preconfigured individual tests. Specification, selection and order of the individual tests are determined by the responsible qualified electrician.
Terminology used in test procedures
The device provides two testing options: The “Automatic test” and the “Manual test”. The following chapter provides a brief insight into both testing options and an overview of the terminology used.

Connection test
During the first measurement, the device checks whether a dangerous contact voltage or a short-circuit is present and whether a test sample is connected. If the test has been passed, the device proceeds with the visual inspection.

Polarity reversal time
The polarity reversal time is the delay time for mains pole reversal. It is used for test samples with a delayed response characteristics, e. g. when testing devices with a defined start time. Delay times from 0 to 60000 ms are admissible. The polarity reversal time remains active only for the duration of the test.

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Functions 7.5 General test procedure

Test time

The test time is the duration of an individual test.
By default, manual tests run without a time limit (test time = 0 seconds). The test person must decide on the basis of the currently displayed values whether the test can be completed or not.
By default, the test times of the automatic test procedures are set to 5 seconds each. If the test time for automatic testing is set to `infinite’ (0), the “Stop” button must be tapped to complete the test. In case of another setting, the test will be completed automatically after the test time has elapsed.

Polarity reversal of the testing voltage
For manual individual tests that require a polarity reversal of the testing voltage, you can carry out the polarity reversal by tapping the buttons “L<->N” and “N<->L”.

Visual inspection
The device provides three different types of visual inspections:
· Standard visual inspection
· Advanced visual inspection
· Customer-specific visual inspection
A test sample may only be electrically tested if no serious defects have been detected during the visual inspection.
Standard visual inspection:
The standard visual inspection includes the following questions, the result of which can be evaluated with “OK” or “Error”:
· “Is the Type plate OK and is the test sample provided with all warnings?”
· “Carry out a visual inspection of housing, cables and connectors.”
Advanced visual inspection:
The advanced visual inspection includes 18 questions that can be shown or hidden as needed using the ON/OFF sliders before the visual inspection begins. The visual inspection is started manually by tapping the “Start visual inspection” button. The result of the visual inspection can be evaluated for all with “All OK”, or for each question with “OK”, “F” for error or “N.A.” for not available.
Customer-specific visual inspection:
The customer-specific visual inspection offers you the possibility to formulate customer-specific questions and checks. The customer-specific visual inspection is structured like the extended visual inspection.

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7.6
7.7
7.7.1

Functions 7.6 Device information
Device information
In the “Information” menu, you can find all current device data as well as contact data of the Technical support [} page 12].
· Device · Item number · Serial number · Firmware version · GUI version · Storage battery voltage/current · Storage battery capacity · Kernel version · Technical support
Phone number Fax number E-mail Website
Individual tests

Protective conductor resistance

EN 50678 (VDE 0701) EN 50699 (VDE 0702)

Class I

Class II Class III

–

EN 62353 (VDE 07511)

Class I

Class II

–

EN 60974-4 (VDE 05444)

Class I

Class II

–

Test samples with protective conductor must have a proper and safe connection to all accessible conductive parts that are connected to the protective connector and can be live in the event of a fault [} page 79].

The protective conductor resistance is composed of the following values:
· The resistance value between the connection point of the test sample up to all accessible conductive parts of the test sample that are connected to the protective conductor,

· The transition resistances of all terminal and plug connections, · the resistances of all connected extension and device connecting cables.

To determine the protective conductor resistance, you can select various testing currents. · Testing current: 0.6 AAC or 10 AAC

· Test frequency: 50 Hz
When exceeding the limit [} page 111], it has to be checked whether other limits have to be observed due to product standards or manufacturer specifications.

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Functions 7.7 Individual tests

7.7.2

Insulating resistance

EN 50678 (VDE 0701) EN 50699 (VDE 0702)

Class I

Class II Class III

EN 62353 (VDE 07511)

Class I

Class II

X (optional)

EN 609744 (VDE 05444)

Class I

Class II

By means of this measurement, you can determine whether the insulation of the test sample has sufficiently high resistances. A high insulating resistance ensures that no fault currents can flow off [} page 80].
The insulating resistance is measured between the following points, depending on the test standard and protection class:

Test standard Measuring points

RInsu-1

LN to PE and conductive accessible parts (Class I) LN to test body (Class II)

Input to test body (Class III)

RInsu-2

Secondary side to PE and conductive accessible parts (Class I) Secondary side to test body (Class II)

Output to test body (Class III)

RInsu-3

LN to secondary side (Class I), (Class II) Input to output (Class III)

RInsu-4

LN to conductive accessible parts without PE connection (Class I)

For information devices and components carrying SELV, testing of the insulating resistance may be dispensed with if damage to the test sample might occur as a result of the measurement.

According to VDE 0751-1, a measurement of the insulating resistance is only necessary for medical devices if it is considered to be appropriate and is not excluded by the manufacturer’s specifications in the accompanying documents.

The testing current is limited to 1 mA for each testing voltage. Tap the “Limits” button to manually change the applied DC testing voltage in integers between 100 … 500 VDC (-0 % / +25 %) or 501 … 1000 VDC (-12 % / +25 %).

The following testing voltages are preset in compliance with the test standards:

· 250 VDC

· 500 VDC

· 1000 VDC

Carry out the following additional tests for devices with a secondary output voltage (e. g. isolating transformers, chargers, converters, power supply units):

1. Insulating resistance measurement between secondary and primary side

2. Insulating resistance measurement between secondary side and the equipment body

3. Contact current measurements of the secondary voltage outputs (except for Class III)

4. Measurement of the open-circuit voltage / output voltage.

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7.7.3 7.7.4
7.7.5

Functions 7.7 Individual tests

Protective conductor current

EN 50678 (VDE 0701) EN 50699 (VDE 0702)

Class I

Class II Class III

–

EN 62353 (VDE 07511)

Class I

Class II

–

EN 609744 (VDE 05444)

Class I

Class II

–

For test samples of protection class I, the protective conductor current is tested at mains voltage to check it for proper insulation capacity. This is to ensure that no leakage or fault current flows from the active components to earth and that there is no risk of a dangerous electric flow via accessible conductive components [} page 83].

Contact current

EN 50678 (VDE 0701) EN 50699 (VDE 0702)

Class I

Class II Class III

(optional)

EN 62353 (VDE 07511)

Class I

Class II

EN 609744 (VDE 05444)

Class I

Class II

The contact current must be measured on every accessible conductive component without protective conductor connection [} page 84].

This is to ensure that there is no risk of a dangerous electric flow via accessible conductive components. Accessible conductive SELV / PELV jacks can optionally be scanned, provided that no damage to the test sample has to be expected.
For this purpose, the following measuring methods may be used:

· Direct current measuring method (direct measuring method) · Differential current measuring method

· Alternative leakage current measuring method

Device leakage current (medical electrical devices)

EN 50678 (VDE 0701) EN 50699 (VDE 0702)

Class I

Class II Class III

–

EN 62353 (VDE 07511)

Class I

Class II

EN 609744 (VDE 05444)

Class I

Class II

–

The device leakage current corresponds to the sum of all leakage currents and is tested at mains voltage for medical devices of protection classes I and II to prove proper insulation capacity. This is to ensure that no leakage current flows from the active components, the housing or accessible conductive components to earth and that there is no risk of a dangerous electric flow via accessible conductive components [} page 86].
For this purpose, the following measuring methods may be used:

· Direct current measuring method (direct measuring method) · Differential current measuring method

· Alternative leakage current measuring method

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Functions 7.7 Individual tests

7.7.6 7.7.7

Patient leakage current (medical electrical devices)

EN 50678 (VDE 0701) EN 50699 (VDE 0702)

Class I

Class II Class III

–

EN 62353 (VDE 07511)

Class I

Class II

EN 609744 (VDE 05444)

Class I

Class II

–

The patient leakage current is the current that flows from active applied parts via the patient to the PE conductor (earth). It is tested at mains voltage for medical devices of protection classes I and II to prove proper insulation capacity. This is to ensure that no leakage current flows from the active applied parts to earth and that there is no risk of a dangerous electric flow for the patient [} page 88].

For this purpose, the following measuring methods may be used: · Direct current measuring method (direct measuring method)

· Alternative leakage current measuring method

Functional test

EN 50678 (VDE 0701) EN 50699 (VDE 0702)

Class I

Class II Class III

–

EN 62353 (VDE 07511)

Class I

Class II

EN 609744 (VDE 05444)

Class I

Class II

The functional test is intended for the final verification of electrical safety and is an obligatory part of the test standards to be considered [} page 90]:
· EN 50678 (VDE 0701) · EN 50699 (VDE 0702) · EN 62353 (VDE 07511) · EN 609744 (VDE 05444) Non-electrical functions, e. g. cutting, lifting or turning, must be checked at a lower level. The functional test includes the following for all single-phase test samples: · Input voltage · Input current · Effective power · Apparent power Moreover, depending on the test standard and protection class, the corresponding leakage current is measured.

Test standard

Protection class

Leakage current

EN 50699 (VDE 0701) EN 50699 (VDE 0702)

IPE

EN 609744 (VDE 05444)

EN 50699 (VDE 0701) EN 50699 (VDE 0702)

ICont

EN 609744 (VDE 05444)

EN 62353 (VDE 07511)

I and II

ILeak

Table 18: Leakage current measurement (test standard and protection class)

The functional test of three-phase devices can be carried out using the BENNING MA 2-16 / MA 4 measuring adapter. Input voltage, input current as well as effective and apparent power cannot be measured. If necessary, performance data of the measuring adapter are displayed, but not those of the test sample.

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7.7.8 7.7.9 7.7.10

Functions 7.7 Individual tests

for complete functional testing of medical electrical (ME) devices or systems, additional measuring and testing devices may be required. e. g. infusion pump testers, defibrillator testers or patient simulators.
For this purpose, the following measuring methods may be used:
· Differential current measuring method
· Direct current measuring method (direct measuring method)

Cable continuity test

EN 50678 (VDE 0701) EN 50699 (VDE 0702)

Class I

Class II Class III

–

EN 62353 (VDE 07511)

Class I

Class II

EN 609744 (VDE 05444)

Class I

Class II

The cable continuity test is intended for measuring the line resistance and is used e. g. for connecting cables, extension cables and cable reels [} page 91].

The following limits can be set: · Line length [m] [} page 37]

· Line cross-section [mm²]

· Number of conductors (max. for single-phase test samples)

· R line per conductor []

The test frequency is 50 Hz.

Safety extra-low voltage

EN 50678 (VDE 0701) EN 50699 (VDE 0702)

Class I

Class II Class III

EN 62353 (VDE 07511)

Class I

Class II

–

EN 609744 (VDE 05444)

Class I

Class II

–

The safety extra-low voltage is measured to check for compliance with the specifications regarding the rated voltage of test samples with SELV / PELV voltages [} page 92].
· SELV (safety extra-low voltage)

In case of SELV, the conductors of the extra-low voltage side and the body of the test sample are insulated and not connected to a protective conductor.
· PELV (protective extra-low voltage)

In case of PELV, the conductors of the extra-low voltage side and the body of the test sample are earthed and connected with a protective conductor.
The test socket is supplied with mains voltage. Exception: Test samples of protection class III.

Voltage of the welding circuit

EN 50678 (VDE 0701) EN 50699 (VDE 0702)

Class I

Class II Class III

–

EN 62353 (VDE 07511)

Class I

Class II

–

EN 609744 (VDE 05444)

Class I

Class II

The voltage of the welding circuit (open-circuit voltage) is tested to check for compliance with the specifications regarding the rated voltages of test samples according to VDE 05444 [} page 93].

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Functions 7.7 Individual tests

The device uses a digital potentiometer to realise the load of the welding device. The load starts as soon as at least half of the limit of the welding voltage has been reached. The load duration is 3 seconds.
The device measures the AC or DC welding voltage, the peak value of the welding voltage and the welding current between the two poles.

7.7.11

Contact current of the welding circuit

EN 50678 (VDE 0701) EN 50699 (VDE 0702)

Class I

Class II Class III

–

EN 62353 (VDE 07511)

Class I

Class II

–

EN 609744 (VDE 05444)

Class I

Class II

The contact current of the welding circuit is tested to check for compliance with the rated values of devices according to VDE 05444 [} page 94].

For this purpose, the following measuring methods may be used:

· Direct current measuring method (direct measuring method)

· Differential current measuring method

· Alternative leakage current measuring method

7.7.12

PRCD

EN 50678 (VDE 0701) EN 50699 (VDE 0702)

Class I

Class II Class III

–

EN 62353 (VDE 07511)

Class I

Class II

–

EN 609744 (VDE 05444)

Class I

Class II

–

A portable residual current protection device (PRCD) provides protection against hazardous body currents in the downstream circuit in case of direct contact. The rated value for the tripping fault current is max. 30 mA [} page 95].
The device provides an automatic test procedure [} page 104] for each PRCD type. The PRCD test includes the following tests and measurements:

PRCD type

B B+ K

Tripping type

AC / pulsating direct currents

DC / universal currentsensitive

Tests

Tripping current at X

0° and 180°

Tripping times

VCont

Tapping the TRIP X

key

Interrupting the

L conductor

Interrupting the

N conductor

Interrupting the

PE conductor

S S+ AC 2-pin 3-pin AC

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Functions 7.8 Remote control

7.7.13
7.8

VTest probe Additional measurements

RPE

RInsu-1

RInsu-2

IPE

ICont

Table 19: PRCD tests

The PRCD cannot be switched on without mains voltage due to undervoltage tripping.

PRCDs of type AC only detect pure sinusoidal currents and are therefore no longer approved in Germany according to VDE 0100530. The contact current measurement of the PRCDs is carried out with a testing voltage of 230 VAC and a testing current up to a maximum of 90 A.

Power distributors

EN 50678 (VDE 0701) EN 50699 (VDE 0702)

Class I

Class II Class III

–

EN 62353 (VDE 07511)

Class I

Class II

–

EN 609744 (VDE 05444)

Class I

Class II

–

A portable power distributor is intended for power supply at different locations and often includes an RCD (residual current protection device) and MCB (line safety switch). The test procedures 19 and 20 available in the device include the necessary test steps that apply to a large number of commercially available power distributors.

Please note that the admissible limits and test steps of the test procedures available in the device might be different from the necessary limits and test steps of the switches used in the power distributor (RCD, MCB,…).

For testing, you can proceed as follows: · Automatic test using an existing test procedure [} page 39] (test procedure 19 or 20; depending on the RCD installed in the test sample)
· Automatic test using a customer-specific test procedure · Manual test including all necessary individual tests [} page 77].

Remote control
The remote control function mirrors the user interface of the device to an external end device (e. g. smartphone, tablet or PC) and allows the device to be controlled via the end device used. This function supports training consultants or qualified electricians in instructing trainees on the functional scope of the device.
The device can be controlled remotely using the following options: · Remotely controlling the device via WLAN using a smartphone or tablet [} page 119] · Remotely controlling the device via LAN using a PC [} page 118] Please note that it is not possible to use the device via WLAN and LAN simultaneously.

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Functions 7.9 Optional accessories

7.9

Optional accessories

7.9.1

Three-phase testing with the BENNING MA 4
The BENNING MA 4 serves as a measuring adapter for testing three-phase test samples and supports the following measurements (active):
· Protective conductor resistance
· Insulating resistance
· Functional test and phase sequence test of cables
· Alternative leakage current measuring method
Protective conductor current, contact current, device leakage current, patient leakage current
· Differential current measuring method
Protective conductor current
Device leakage current
· Direct current measuring method
Contact current
Patient leakage current
· Functional test (power consumption and current consumption of the test sample cannot be determined)
· Ua welding equipment (ST 760+) · PRCD The test procedures 17 – 22 [} page 102] included in the device represent automatic test procedures for using the BENNING MA 4.
When commissioning the measuring adapter, please observe the supplied operating manual as well as the instructions for the corresponding individual test.

Figure 6: BENNING MA 4

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7.9.2

Functions 7.9 Optional accessories
Three-phase testing with the BENNING MA 3
The BENNING MA 3 serves as a measuring adapter for testing three-phase test samples and supports the following measurements (passive):
· Protective conductor resistance · Insulating resistance · Functional test and phase sequence test of cables · Alternative leakage current
Protective conductor current, contact current, device leakage current, patient leakage current
The test procedures 21 and 22 [} page 102] included in the device represent automatic test procedures for using the BENNING MA 3. When commissioning the measuring adapter, please observe the supplied operating manual as well as the instructions for the corresponding individual test.

7.9.3

Figure 7: BENNING MA 3
Three-phase testing with the BENNING MA 2-16
The BENNING MA 216 serves as a measuring adapter for testing three-phase test samples and supports the following measurements (active):
· Cable continuity · Insulating resistance · Protective conductor current · Contact current · Functional test (power consumption and current consumption of the test sample cannot be
determined) The test procedures 17 – 20 and 22 [} page 102] included in the device represent automatic test procedures for using the BENNING MA 2-16. When commissioning the measuring adapter, please observe the supplied operating manual as well as the instructions for the corresponding individual test.

Figure 8: BENNING MA 2-16

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Functions 7.9 Optional accessories

7.9.4

Single-phase and three-phase testing with the leakage current clamp
The leakage current clamps BENNING CM 9-1 and CM 9-2 are intended for partial testing of single-phase and three-phase test samples and support the following measurements:
· Protective conductor current (direct current and differential current measuring methods) Class I
· Contact current (differential current measuring method) Class II
There is no connection to the device. The measured leakage /fault current is entered manually in an input window of the device. Measuring adapters facilitate testing with the leakage current clamp [} page 18]. The test procedures 12 and 13 [} page 102] included in the device represent automatic test procedures for using a leakage current clamp.
When commissioning the leakage current clamp, please observe the supplied operating manual as well as the instructions for the corresponding individual test.

7.9.5

Figure 9: BENNING CM 9-1 / BENNING CM 9-2
Barcode scanner (optional)
The optional barcode scanner serves as an optical recognition tool for the device and makes it easier to manage and identify the test samples. For this purpose, each test sample is provided with an adhesive barcode label and the barcode scanner is used to scan the barcode and transfer it to the database of the device. The available barcode scanners can be used via the Bluetooth® or USB interface.
The barcode scanner converts the scanned barcode into an input similar to an input made via the keyboard and transmits numbers, letters and special characters depending on the corresponding configuration.
The barcode scanners are configured by default for being used with the device.
The following barcode scanners are optionally available:
· USB barcode scanner
· Cordless barcode scanner (available from device software 1.05 or higher) with two operating modes Cordless operation (integrated in the barcode reader, supports the Bluetooth® function integrated in the device)
2.4 GHz wireless transmission (supplied USB dongle is required)

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Functions 7.9 Optional accessories
Requirements
· Please observe the operating manual of the respective barcode scanner. · The battery of the cordless barcode scanner is charged. · The battery of the cordless barcode scanner is not in charging mode.
Procedure Putting the USB barcode scanner into operation
1. Switch on the device. 2. Connect the connecting cable of the barcode scanner to a USB-A port of the device.
The status LED of the barcode scanner lights up and an acoustic signal is emitted. The barcode scanner is ready for operation.
Procedure Putting the wireless barcode scanner into operation (wireless)
1. Switch on the device. The barcode scanner must be configured to the “2.4 GHz wireless transmission” operating mode. The status LED of the barcode scanner is off, indicating that the barcode scanner is ready for radio transmission to the supplied USB dongle.
2. Plug the USB dongle of the barcode scanner into a USB-A port of the device. The barcode scanner is ready for operation.
Procedure Putting the cordless barcode scanner into operation (cordless)
1. Switch on the device. The barcode scanner must be configured to the “cordless” operating mode. The status LED of the barcode scanner changes to flashing mode and lights up in blue colour. The flashing mode of the barcode scanner indicates that the barcode scanner is ready for cordless connection to the device.
2. Establish a Bluetooth ® connection between the device and the barcode scanner [} page 59]. The barcode scanner is ready for operation. If the connection fails, restart the device as well as the barcode scanner and repeat the commissioning. To disable the barcode scanner, press and hold the button of the barcode scanner for approx. 12 seconds. Press the button again to re- enable the barcode scanner.
Procedure Operating the barcode scanner
You can create and select test samples using the barcode scanner in the database as well as during the test procedure (automatic and manual tests according to VDE). Instead of entering the test sample identification number manually, the identification number or barcode is scanned using the barcode scanner by pressing a button. The identification number will be entered automatically.

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Functions 7.9 Optional accessories

7.9.6

RFID scanner (optional)
The multi-frequency RFID scanner and the optional RFID tags are accessories which have been factory-tested and adapted to the device. The RFID (Radio Frequency IDentification) procedure is intended for electronic identification of objects by means of radio transmission. An RFID system consists of two components: an RFID scanner and an RFID transponder (RFID tag). Each RFID tag is provided with a worldwide unique UID no. (unique identifier) which can be read by means of the RFID scanner and assigned to a test sample without any contact. For periodic inspection of electrical equipment, radio frequencies of 125 kHz (LF) and 13.56 MHz (HF) prevail. RFID technology offers the advantage that it can be applied continuously and reliably even in harsh industrial environments.
Please observe that metallic surfaces strongly influence the radio connection. The direct contact of an RFID tag to a metallic surface should be avoided. To transmit the UID no. of the RFID tag, the tag must be moved to the marked reception area of the RFID scanner.

Requirements
· Please observe the operating manual of the respective RFID scanner. · The RFID tag must not be placed on a metallic surface.

Procedure Putting the RFID scanner into operation
1. Switch on the device.
2. Connect the connecting cable of the RFID scanner to a USB-A port of the device.
The status LED of the RFID scanner lights up and an acoustic signal is emitted. The RFID scanner is ready for operation.
If the connection fails, restart the device as well as the RFID scanner and repeat the commissioning.
To disable the RFID scanner, press and hold the button of the RFID scanner for approx. 12 seconds. Press the button again to re-enable the RFID scanner.

Procedure Operating the RFID scanner
You can create and select test samples using the RFID scanner in the database as well as during the test procedure (automatic and manual tests according to VDE). Instead of entering the test sample identification number manually, the identification number is scanned using the RFID scanner. The identification number will be entered automatically.

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Functions 7.9 Optional accessories

7.9.7

Printer (optional)
The BENNING PT 2 is a Bluetooth® printer for printing test reports. You can connect the printer to the device via Bluetooth® and print test reports and labels directly.

Requirements
· Please observe the operating manual of the printer.

Procedure Putting the printer into operation
1. Start the printer (insert batteries and a paper roll). To do this, follow the instructions given in the operating manual of the printer.
2. Switch on the device. 3. Establish a Bluetooth ® connection [} page 59] between the device and the printer.

Procedure Operating the printer
If the printer is connected to the device via Bluetooth® and is within range, you can tap the “Print” button on the “Test result” screen after having completed an automatic or manual test procedure to print out the test report on thermographic paper.

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Functions 7.9 Optional accessories

7.9.8

Keyboard (optional)
Two types of keyboards are available:
· Optional wireless keyboard
The optional wireless keyboard facilitates input and control on the device and offers wireless operation for working more flexibly in the vicinity of the device.
· Optional USB keyboard
The optional USB keyboard is protected against dust and splash water and is ideally suited for being used in industry due to its compact design.

Requirements
· Please observe the operating manual the keyboard.

Procedure Putting the wireless keyboard into operation
1. Put the keyboard into operation (insert batteries). To do this, follow the instructions given in the operating manual of the wireless keyboard.
2. Switch on the device. 3. Plug the USB dongle of the wireless keyboard into a USB-A port of the device. 4. Press the “Fn” and “Esc” keys on the keyboard simultaneously.
The “Connect” status LED flashes to indicate that the keyboard is being connected. When the keyboard is connected, the “Connect” status LED remains off.

Procedure Putting the USB keyboard into operation
1. Put the keyboard into operation. To do this, follow the instructions given in the operating manual of the wireless keyboard.
2. Switch on the device. 3. Plug the USB dongle of the USB keyboard into a USB-A port of the device.

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8 Configuration

Configuration 8.1 Setting the system data

8.1

Setting the system data

The “System settings” menu is intended to edit the basic settings of the device.

“Settings > System settings > System data”

Setting options

Parameter AutoID is enabled.

Description ON = The ID is automatically incremented [} page 33].

Auto-ID start

Start value that is incremented when a new customer is created or a customer has no devices.

If test samples are already entered, the next free ID will be determined automatically.

RPE test repetition

ON = During the protective conductor resistance measurement, the device automatically detects whether a measuring point is contacted with the test probe.

If the measured value is “OK”, the device responds with an acoustic signal and the next measuring point can be contacted. If the connection is not OK, there will be two subsequent acoustic signals.

Test repetition

ON = The device asks whether another measuring point shall be contacted with the test probe.

Notification sound

The query applies to: RPE (only if the RPE test repetition is switched off), RInsu-2, RInsu-3, RInsu-4, ICont, ILeak, IPLeak, ICont weld.
ON = Switches on the acoustic signal of the device.

Short-circuit test

ON = Enables the short-circuit test before starting a measurement.

OFF = Disables the short-circuit test before starting a measurement.

IT network

ON = Allows the device to be used in an IT network.

Mains pole reversal

OFF = Disables mains pole reversal for leakage current measurements.

Standard test procedures ON = Enables the standard test procedures. OFF = Hides the standard test procedures when the custom test procedures are enabled.

Custom test procedures

ON = Enables the custom test procedures. OFF = Hides the custom test procedures when the standard test procedures are enabled.

Polarity testing extension ON = Enables the polarity reversal test for extension cables. cable

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Configuration 8.1 Setting the system data

Parameter Automatically search for Bluetooth® devices
Bluetooth® active WLAN active Help graphic MA-4 RPE resist. test adapter Hide keyboard automatically Database directory Print test label Test label Configuration
Test label Dimensions

Description ON = Enables the automatic search for BENNING Bluetooth® devices. It is possible to connect a Bluetooth® printer and a Bluetooth® 1D/2D barcode scanner. Only Bluetooth® devices of BT version 2.1 can be connected. Moreover, the Bluetooth® devices must not be protected by a password. ON = Enables the Bluetooth functionality of the device. ON = Enables the WLAN functionality of the device. ON = MA-4 is displayed. Here, the internal resistance of the measuring adapter in is entered (setting for offset [} page 31] during the test). ON = The input keyboard is hidden.
Selects the storage location of the database (SD card or USB stick). ON = Enables the printer (only possible in connection with the label and log printer PT 2). The following parameters can be set if “Test label Configuration” is enabled (ON):
· Company name
· Heading
· Test date (ON/OFF)
· Next inspection date (ON/OFF)
· Print serial number (ON/OFF)
· Print barcode (ON/OFF) (only possible with PT 2) Setting the parameters for test labels (only necessary if the Benning standard roll is not used).
The following parameters can be set if “Test label Dimensions” is enabled (ON):
· Print offset: value input
· Label offset: value input
· Label length: value input
· Marking offset: value input
· Marking length: value input

Table 20: Setting options for system data

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Configuration 8.2 Setting the device data

8.2

Setting the device data
The “Device data” menu is intended to show and hide test sample properties.

“Settings > System settings > Device data”

Setting options
Use the slider (ON/OFF) to enable and disable the displayed test sample properties in the list [} page 66]. Enabled parameters are displayed and available for being selected. Disabled parameters are hidden.

8.3

Managing the network settings
The “Network” menu is intended to manage and display the network settings.

“Settings > Network”

Setting options

Changes in the network settings will only take effect after the device has been restarted.

Menu Information
Host name

Parameter Host name DHCP Status IP address Subnet mask Standard gateway MAC address DNS accessibility Update server accessibility –

LAN IPv4 WLAN IPv4
WLAN networks

DHCP status
IP address Subnet mask Standard gateway –

Remote control –

Table 21: Network settings

Description Gives an overview of the current network configurations.
Changes the current host name (device name). The change of the host name only becomes effective after restarting the device. Enabled: The device is automatically integrated into an existing network. Can only be changed if DHCP is disabled.
Manages the WLAN networks and connection establishment. Enables remote access from the end device or PC to the device.

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Configuration 8.3 Managing the network settings
8.3.1 Establishing a connection via WLAN

“Settings > Network > WLAN networks”

Procedure
1. Select a network. If the desired network is not displayed, tap the “Update” button. The signal strength of the WLAN network is specified in the corresponding line as a percentage value (100 % correspond to full signal strength).
2. Tap the “Connect” button to connect the device to the network. The “Password” window opens.
3. Enter your network password and confirm it with the “Enter” button.

Result
8.3.2

The device has been successfully connected to the network. The access data are now stored in the device. When the status message “Not connected” is displayed, check if you are within range of the WLAN network and if the password is correct. To disconnect the network connection, select the network and tap the “Disconnect” button. To delete the network connection, select the network and tap the “Delete” button.
Establishing a connection via Bluetooth

Requirements
· Bluetooth® is enabled on the respective end device.

“Settings > System settings > Bluetooth”

Procedure

1. Search for available Bluetooth® devices. 2. Select your device and tap “Connect”.
If the connection fails, take the following corrective measures: “Disconnect” the Bluetooth® connection. “Delete” the Bluetooth® connection. “Search” again for the barcode scanner. “Connect” the barcode scanner again.

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Configuration 8.4 Managing the expert settings

8.4

Managing the expert settings

8.4.1

Managing customer-specific limits
The “Customer-specific limits” menu is intended to manage limits for manual tests and customer-specific test procedures.

Requirements
· You are logged on to the device as a user with admin status.

“Settings > System settings > Customer-specific limits”

Procedure
1. Select the desired limit. To do this, tap the right of the line. A selection of test standards is displayed.
2. Select the corresponding standard. To do this, tap the right of the line. An input window opens.
3. Edit the limit and confirm your entries with the “Enter” button. 4. Save your entries. To do this, tap the “Save” button.

Result

The limits for the manual test are stored temporarily, until the device is restarted. To reset the temporarily changed limits to the default values, tap the “Reset” button. To permanently save the changed limits as new default limits for manual and customer-specific test procedures, tap the “Overwrite” [} page 28] button.

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Configuration 8.4 Managing the expert settings

8.4.2

Creating a customer-specific visual inspection
The “Customer-specific visual inspection” menu is intended to manage individual test questions.

Requirements
· You are logged on to the device as a user with admin status.

“Settings > Expert settings > Customer-specific visual inspection”

Setting options
· New (create) · Change · Copy · Delete

Result
8.4.3

Created test questions will be saved and displayed on the “Questions” screen.
Creating customer-specific test procedures
The “Customer-specific test procedures” menu is intended to create and manage test procedures for specific device types, deviating tests or special test states.

Requirements
· You are logged on to the device as a user with admin status.

“Settings > Expert settings > Customer-specific test procedures”

Setting options
· New (create) · Change · Copy · Delete

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Configuration 8.4 Managing the expert settings

When you create or edit a test procedure, the “Test procedure” screen opens. The following settings can be made for the individual test procedure:

Parameter VDE Protection class Visual inspection Connection test
RPE 600mA
RPE 10A
RInsu-1 / RInsu-IN RInsu-2 RInsu-3 RInsu-4 RInsu-OUT IPE
ICont
Funct.
Cable Ua
PRCD PRCD current intensity Table 22: “Test procedure” screen

Description Select the test standard. Selects the protection class. Enables / disables the visual inspection. Enables /disables the connection test [} page 40]. Enables /disables the protective conductor resistance measurement with 600 mA. Enables /disables the protective conductor resistance measurement with 10 mA. Enables / disables the insulating resistance measurement.
Disables the protective conductor current measurement or selects the measuring method. Disables the contact current measurement or selects the measuring method. Selects the measuring method for the functional test. Enables / disables the continuity test. Enables / disables the output voltage measurement. Selects the PRCD type. Selects the tripping current of the PRCD.

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Configuration 8.4 Managing the expert settings

8.4.4

Managing customer-specific device templates (test sample templates)
The “Customer-specific device templates” menu is intended to manage test sample templates.

“Settings > Expert settings > Customer-specific device templates”

Procedure
1. Create a new template. To do this, select an empty line (“empty”) and tap the “New” button. If there are already templates, you can select and edit them (change, copy, delete).
2. Fill in all relevant parameters for the test sample in the “Device” screen. As “Designation”, select an existing test sample as a template or create a new one.
3. Assign a quick selection button to the test sample. To do this, tap the “Select key” button in the Smart menu.
4. Select an empty quick selection button (“empty”). 5. Fill in all relevant parameters for “Key labelling:” and confirm your entries by tapping the
“OK” button.

8.4.5

Managing templates
The “Templates” menu area is intended to manage the following settings: · Customer-specific test procedures · Customer-specific visual inspections · Customer-specific device templates test sample templates

Requirements
· Templates (test procedures, visual inspections, test sample templates) have already been created.
· You are logged on to the device as a user with admin status.

“Settings > Expert settings > Templates > Test procedures / Visual inspection / Device templates”

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Configuration 8.5 Managing a user

Operating principle

If you have selected a template type (test procedures, visual inspections or device templates), you will see the database-specific (test sample) templates on the left side of the screen and the cross-database (test sample) templates on the right side of the screen.

Buttons

Description

Change

Opens an input window for entering / editing the name.

Copy

Copies a duplicate of the selected template to the respective “other side”:

· Into the cross-database templates (storage on device)

· Into the database-specific templates (storage in customer database)

Delete

Deletes the selected template.

Copy all

Copies all templates to the respective “other side”. Existing templates are overwritten if desired.

Table 23: How to manage templates

Procedure Using “Copy” as an example
1. Select a test standard.
2. Select a database.
If you want to copy a template from a database to the cross-database templates, select an entry on the left side of the screen and tap “Copy”.
If you want to copy a template from the cross-database templates to a database, select an entry on the right side of the screen and tap “Copy”.

8.5

Managing a user
The “User administration” menu is intended to manage user data and access rights.

Requirements
· You are logged on to the device as a user with admin status.

“Settings > User administration”

Setting options
· New (create) · Change · Copy · Delete

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Configuration 8.6 Managing a database

8.6

Managing a database
The “Database” menu is intended to manage the following conten

BENNING ST 755 Plus Device Tester Instruction Manual

ST 755 Plus Device Tester

Product Information: BENNING ST 755+ / ST 760+

Specifications:

Product Usage Instructions:

1. Introduction

1.1 Naming Convention

1.2 General Notes

1.3 History

1.4 Service & Support

2. Safety

2.1 Warning System

2.2 Standards Applied

2.3 Symbols Used

2.4 Intended Use

2.5 Special Types of Risks

FAQ (Frequently Asked Questions)

Q: Can I use the BENNING ST 755+ for use case B?

Q: How often should I check for software updates?

Q: Can I reproduce or distribute the product

Q: What should I do if I encounter any issues with the

References

Read User Manual Online (PDF format)

Download This Manual (PDF format)

BENNING User Manuals

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